Industrial Engineering and Production Management
Travel charts provide

An idea of the flow of materials at various stages
The information for changes required in rearranging material handling equipment
An approximate estimate of the handling which must be done at a particular station
A compact estimate of the handling which must be done between various work sections

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Industrial Engineering and Production Management
Pick up the incorrect statement about advantages of work sampling

Calculations are easier, method is economical and less time consuming
Permits a fine breakdown of activities and delays
No time measuring devices are generally needed
Simultaneous study of many operators may be made by a single observer

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